From: "Melanie Plageman (Microsoft)" <melanieplageman@gmail.com>
To: linux-scsi@vger.kernel.org
Cc: andres@anarazel.de, haiyangz@microsoft.com, jejb@linux.ibm.com,
kys@microsoft.com, linux-hyperv@vger.kernel.org,
linux-kernel@vger.kernel.org, martin.petersen@oracle.com,
mikelley@microsoft.com, sthemmin@microsoft.com,
wei.liu@kernel.org,
"Melanie Plageman (Microsoft)" <melanieplageman@gmail.com>
Subject: [PATCH v1] scsi: storvsc: Cap cmd_per_lun at can_queue
Date: Fri, 5 Mar 2021 23:21:51 +0000 [thread overview]
Message-ID: <20210305232151.1531-1-melanieplageman@gmail.com> (raw)
The scsi_device->queue_depth is set to Scsi_Host->cmd_per_lun during
allocation.
Cap cmd_per_lun at can_queue to avoid dispatch errors.
Signed-off-by: Melanie Plageman (Microsoft) <melanieplageman@gmail.com>
---
drivers/scsi/storvsc_drv.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/scsi/storvsc_drv.c b/drivers/scsi/storvsc_drv.c
index 6bc5453cea8a..d7953a6e00e6 100644
--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1946,6 +1946,8 @@ static int storvsc_probe(struct hv_device *device,
(max_sub_channels + 1) *
(100 - ring_avail_percent_lowater) / 100;
+ scsi_driver.cmd_per_lun = min_t(u32, scsi_driver.cmd_per_lun, scsi_driver.can_queue);
+
host = scsi_host_alloc(&scsi_driver,
sizeof(struct hv_host_device));
if (!host)
--
2.20.1
next reply other threads:[~2021-03-05 23:23 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-05 23:21 Melanie Plageman (Microsoft) [this message]
2021-03-08 14:37 ` [PATCH v1] scsi: storvsc: Cap cmd_per_lun at can_queue Michael Kelley
2021-03-08 17:56 ` Melanie Plageman
2021-03-09 10:09 ` John Garry
2021-03-09 15:57 ` Michael Kelley
2021-03-09 16:35 ` John Garry
2021-03-09 17:09 ` Michael Kelley
2021-03-09 15:45 ` Michael Kelley
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